Method for controlling the discharge of fluids during a process for vulcanization and molding of a green tire and tire for vehicle wheels
US-2015336344-A1 · Nov 26, 2015 · US
Expandable bladder for tyre-curing apparatuses, a manufacturing method thereof, and a process for manufacturing tyres for vehicle wheels
US8961857B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961857-B2 |
| Application number | US-201213654816-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 18, 2012 |
| Priority date | Oct 31, 2003 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
Official abstract text for this publication.
An expandable bladder has at least one first layer of butyl material and one second layer of silicone material, radially external to the first layer. The first and second layers have an undulated interface profile defining mechanical-engagement elements between the first and second elastomer materials. A process for manufacturing bladder as well as a tire molding and vulcanizing apparatus incorporating the bladder.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of manufacturing an expandable bladder for tyre-vulcanising apparatuses, comprising the steps of: preparing at least one first elongated element comprising a first raw elastomer material and at least one second elongated element including a second raw elastomer material having a different composition from that of the first elastomer material; laying said first elongated element on a toroidal support in the form of coils wound around a geomet…
Assignees
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Classifications
- B29D30/0601Primary
Operations & Transport · mapped topic
- B32B25/04Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8961857B2 cover?
- An expandable bladder has at least one first layer of butyl material and one second layer of silicone material, radially external to the first layer. The first and second layers have an undulated interface profile defining mechanical-engagement elements between the first and second elastomer materials. A process for manufacturing bladder as well as a tire molding and vulcanizing apparatus incor…
- Who is the assignee on this patent?
- Pirelli
- What technology area does this patent fall under?
- Primary CPC classification B29D30/0601. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).